3x + 5x + 7x = 45
15x = 45
x = 3
A = 9 B= 15 C = 21
9(7) + 15(10) + 21(13)=486
486/45 = cost/kg
10.8 cost/kg for the mix.
A shop owner blends three types of coffee,A,B,C.in the ratio 3:5:7
a) calculate the weight of each type of coffee in 45kg of three blended mixture.
b) given that type A coffee cost $7 per kg, type B coffee costs $10 kg and type C coffee costs $13 per kg, calculate the cost per kg of the blended mixture
5 answers
3*3
Sol:
Wt. of each type of coffee
= 3+5+7
= 15
= 3x3 3x5 3x7
= 9kg,15kg,21kg
Wt. of each type of coffee
= 3+5+7
= 15
= 3x3 3x5 3x7
= 9kg,15kg,21kg
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3x+5x+7x=45
15x=45
x=3
A=9 B=15 C=21
9(7)+15(10)+21(13)=486
486/45 =cost/kg
10.80 cost/kg for mixture
15x=45
x=3
A=9 B=15 C=21
9(7)+15(10)+21(13)=486
486/45 =cost/kg
10.80 cost/kg for mixture
1 answer